Finding the Fourth Proportional to 19,337.39, 26,635.69 and 13,662.29

Step by Step Solution

1. Step 1: Write the proportion equation
   19,337.39 : 26,635.69 = 13,662.29 : x
2. Step 2: Convert to fraction form
   19,337.39/26,635.69 = 13,662.29/x
3. Step 3: Cross multiply
   19,337.39x = 26,635.69 × 13,662.29
4. Step 4: Simplify right side
   19,337.39x = 363,904,386.23
5. Step 5: Solve for x
   x = 363,904,386.23/19,337.39
6. Step 6: Final answer
   x = 18,818.69